Do Do-Hye (Jeon So-Min) is a math teacher. She has a personality that is too honest at times and this causes her to face embarrassing moments. Whenever she has one of those embarrassing moments, she writes down in her wrong answer notes and reflects on herself.
Do Do-Hye goes to a camp for writing college entrance exam questions. There, she meets two men with whom she had embarrassing moments with in the past.
수능 출제 위원으로 합숙소에 입소한 수학교사 도도혜(전소민 분)가 과거 자신의 흑역사를 만들었던 2명의 남자와 엮이게 되는 속세단절 로코 드라마
